Dear Rupert: I need to get in touch with the author of the Story Map "Motion of Tectonics". I think it is great. However, when I sent it to several friends that are geologists, two of with are PhD's teaching at universities in USA, I was advised that the concepts described in the map on the movement of the plates are not up to date. I would like to refer the comments of Dr. Pablo A. Llerandi-Román, Ph.D. (Associate Professor of Geology and Integrated Science, Grand Valley State University, Michigan) to the author to clarify whether the Story Map needs to be revised. The author is not shown on the Story Map. Please advise through firstname.lastname@example.org. Thanks.